It seems to be a general opinion in the electrical trade that rewiring after thermowall has been installed or even installing additional cables near impossible to run through the foam, I have crossed paths with rewiring and installing new cabling with house’s that have Thermowall installed and I can safely say that it is quite easy to run cables through cavities in which Thermowall is situated.
Like any wall insulation it makes our life harder but out of all of the wall insulations on the market Thermowall would be by no way be the hardest to negotiate.
Heatsaver’s Thermowall should not be a hassle for your Electrician.
Simon Chen
IO Electrical LTD